arm64: dts: ti: k3: j721s2/j784s4: Switch to https links

Looks like a couple of http:// links crept in. Use https instead.

While at it, drop unicode encoded character.

Signed-off-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20230417225450.1182047-1-nm@ti.com


Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>